The single-sector approach may result in conflicts among user groups . For example,
fertilizers used in the agricultural sector have caused eutrophication that has affected
fisheries in the Baltic Sea (Caddy 1993; Helsinki Commission 2009). Conflicts between
farmers and fishers in this situation are not adequately solved by the fishing sector itself—
to solve the problem, a cross-sector approach may be needed, which is consistent
with ecosystem-based management.